Structural adhesive refers to a type of adhesive material with high adhesion strength that is used on various engineering components to replace traditional welding or bolts and other joining methods to facilitate the assembly of engineering components.
Structural adhesive is applied to adhere metal and plastic components. After bonding and curing, the finished product can withstand larger loads and has excellent heat resistance, atmospheric aging resistance, vibration fatigue resistance, low creep and high Long-lasting strength. Structural adhesives are mostly composed of polymers with a three-way cross-linked structure, supplemented with tougheners or inorganic fillers. Structural adhesives can be divided into the following categories according to the resin type, adhesive strength and curing method of the material.
| Item | STIFBONDTM GF-736S | STIFBONDTM CF-I36R | STIFBONDTM CF-JB6Q |
|---|---|---|---|
| Materials | Acrylic | ||
| Appearance | Milky white | black viscous liquid | White liquid |
| Composition | Single component | ||
| Curing Mechanism | UV + thermal dual curing | Low temperature thermal curing | Low temperature thermal curing |
| Curing Conditions | 365nm UV: 1000 mW/cm² *3sec + heat 120 oC *30min, 100 oC *30min |
85 oC*60 min | 120 oC*60 min |
| Coefficient of Expansion | 23 ppm/K | 38 ppm/K | - |
| Packaging | 30/55 cc syringe | ||
| Storage | 0～5°C 😄 | ||
Key Features
Typical Applications
Curing Conditions
Specification
| Item | Unit | GF-736S | |
|---|---|---|---|
| Specific gravity (Before/After Curing) (DENSIMETER MD-300S, ASTM D297-93-16) | - | 1.75/1.79 | |
| Viscosity (Anton Paar Viscometer, #T-F Bar @ 50rpm) |
Pa·s |
55±10 | |
| Thixotropic coefficient (ASTM Standard D2196) | - | 3±0.5 | |
| Hardness (ASTM D 2240) | Shore D | 89 | |
| Glass transition temperature (Tg) (TMA) | oC | 175 | |
| Shear strength ( GTA method) | Aluminum/Aluminum | MPa | >6.27 |
| Steel/Steel | 5.52 | ||
| Steel/PCB | 5.26 | ||
| PCB/LCP | 1.57 | ||
| Boiling water absorption rate (GTA method, 100oC boiling water x 60min) | % | 3.7 | |
| Coefficient of linear expansion | α1 (Evaluation T: -30°C - 40 °C ) |
ppm/K |
23 |
| α2 (Evaluation T: 120°C - 180 °C ) | 96 | ||
Key Features
Typical Applications
Curing Conditions
Specification
| Item | Unit | CF-I36R | |
|---|---|---|---|
| Specific gravity (DENSIMETER MD-300S, ASTM D297-93-16) | - | 1.62/1.65 | |
| Viscosity (Anton Paar Viscometer, #T-F Bar @ 50rpm) |
Pa·s |
40±10 | |
|
Thixotropic coefficient (ASTM Standard D2196) |
- | 5±0.5 | |
| Shore Hardness (ASTM D 2240) | Shore D | 80 | |
| Glass transition temperature (Tg) (TMA) | °C | 120 | |
| Shear strength ( GTA method, ) | Aluminum/Aluminum | MPa | >6.27 |
| Steel/Steel | >6.27 | ||
| PCB/PCB | 5.55 | ||
| LCP/LCP | 1.47 | ||
| Boiling water absorption rate | % | 3 | |
| Coefficient of linear expansion (TMA) | α1 (Evaluation T: -30°C - 40 °C ) |
ppm/K |
39 |
| α2 ( Evaluation T: 100°C - 150 °C ) | 142 | ||
Key Features
Typical Applications
Curing Conditions
Specification
| Item | Unit | CF-JB6Q | |
|---|---|---|---|
| Specific gravity (DENSIMETER MD-300S, ASTM D297-93-16) | - | 1.45 | |
| Viscosity (Anton Paar Viscometer, #T-F Bar @ 50rpm) |
Pa·s |
60±10 | |
|
Thixotropic coefficient (ASTM Standard D2196) |
- | 5±0.5 | |
| Shore Hardness (ASTM D 2240) | Shore D | 83 | |
| Glass transition temperature (Tg) (TMA) | °C | - | |
| Shear strength ( GTA method, ) | Aluminum/Aluminum | MPa | 3.85 |
| Steel/Steel | >6.27 | ||
| PCB/PCB | 4.30 | ||
| LCP/LCP | 0.74 | ||
| Coefficient of linear expansion (TMA) | α1 (Evaluation T: -30°C - 40 °C ) |
ppm/K |
- |
| α2 ( Evaluation T: 100°C - 150 °C ) | - | ||
① ADAS Component Sealing
（Structural sealing for radar modules, sensor modules, and camera modules)）
② Automotive Camera Lens and Base Sealing
（High-precision bonding between lenses and metal / plastic bases）
Suitable for high-precision optical module assembly and alignment applications.
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